CA313837A - Reseau telephonique a cadrans - Google Patents

Reseau telephonique a cadrans

Info

Publication number
CA313837A
CA313837A CA313837A CA313837DA CA313837A CA 313837 A CA313837 A CA 313837A CA 313837 A CA313837 A CA 313837A CA 313837D A CA313837D A CA 313837DA CA 313837 A CA313837 A CA 313837A
Authority
CA
Canada
Prior art keywords
telephone system
switching telephone
dial switching
community dial
community
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA313837A
Other languages
English (en)
Inventor
Hatton William
De Vriendt Charles
Jean Rousseau Ernest
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AT&T Corp
Original Assignee
Western Electric Co Inc
Publication date
Application granted granted Critical
Publication of CA313837A publication Critical patent/CA313837A/fr
Expired legal-status Critical Current

Links

CA313837A Reseau telephonique a cadrans Expired CA313837A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA313837T

Publications (1)

Publication Number Publication Date
CA313837A true CA313837A (fr) 1931-07-28

Family

ID=35273164

Family Applications (1)

Application Number Title Priority Date Filing Date
CA313837A Expired CA313837A (fr) Reseau telephonique a cadrans

Country Status (1)

Country Link
CA (1) CA313837A (fr)

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